package com.ruoyi.web.controller.common;

import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUtils;
import com.ruoyi.framework.config.ServerConfig;
import com.ruoyi.goods.utils.OSSUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.UUID;

/**
 * 通用请求处理
 * 
 * @author ruoyi
 */
@RestController
@RequestMapping("/common")
public class CommonController
{
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;

    private static final String FILE_DELIMETER = ",";

    /**
     * 通用下载请求
     * 
     * @param fileName 文件名称
     * @param delete 是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
    {
        try
        {
            if (!FileUtils.checkAllowDownload(fileName))
            {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete)
            {
                FileUtils.deleteFile(filePath);
            }
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 通用上传请求（单个）
     */
    @PostMapping("/upload")
    public AjaxResult uploadFile(MultipartFile file) throws Exception {
        try {
            // 获取文件原始名称
            String originalFilename = file.getOriginalFilename();

            // 生成新文件名
            String suffix = originalFilename.substring(originalFilename.lastIndexOf("."));
            String fileName = UUID.randomUUID().toString() + suffix;

            // 生成日期目录
            SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
            String dateDir = sdf.format(new Date());

            // 组合OSS存储路径
            String ossPath = dateDir + "/" + fileName;

            // 上传文件到OSS
            String url = OSSUtil.upload(ossPath, file.getInputStream());

            // 返回结果
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url",fileName); // 返回完整的OSS文件URL
            ajax.put("fileName", url);
            ajax.put("originalFilename", originalFilename);

            // 打印调试信息
            System.out.println("日期目录: " + dateDir);
            System.out.println("上传后的文件URL: " + url);
            System.out.println("生成的新文件名: " + fileName);
            System.out.println("原始文件名: " + originalFilename);

            return ajax;
        } catch (Exception e) {
            return AjaxResult.error(e.getMessage());
        }
    }


    /**
     * 通用上传请求（多个）
     */


    @RestController
    public class FileUploadController {

        @PostMapping("/upload")
        public AjaxResult uploadFiles(MultipartFile[] files) {
            List<String> uploadedUrls = new ArrayList<>();

            try {
                for (MultipartFile file : files) {
                    // 获取文件原始名称
                    String originalFilename = file.getOriginalFilename();

                    // 生成新文件名
                    String suffix = originalFilename.substring(originalFilename.lastIndexOf("."));
                    String fileName = UUID.randomUUID().toString() + suffix;

                    // 生成日期目录
                    SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
                    String dateDir = sdf.format(new Date());

                    // 组合OSS存储路径
                    String ossPath = dateDir + "/" + fileName;

                    // 上传文件到OSS
                    String url = OSSUtil.upload(ossPath, file.getInputStream());

                    // 将上传的URL添加到列表
                    uploadedUrls.add(url);
                }

                // 返回结果
                AjaxResult ajax = AjaxResult.success();
                ajax.put("urls", uploadedUrls);  // 返回所有上传文件的URL
                return ajax;
            } catch (Exception e) {
                // 返回错误信息
                return AjaxResult.error("文件上传失败，请稍后重试: " + e.getMessage());
            }
        }
    }



    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception
    {
        try
        {
            if (!FileUtils.checkAllowDownload(resource))
            {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 本地资源路径
            String localPath = RuoYiConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }
}
package com.ruoyi.web.controller.common;

import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.UUID;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.model.PutObjectResult;
import com.ruoyi.common.utils.file.OSSUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.FileUtils;
import com.ruoyi.framework.config.ServerConfig;


/**
 * 通用请求处理
 * 
 * @author ruoyi
 */
@RestController
@RequestMapping("/common")
public class CommonController
{
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;

    private static final String FILE_DELIMETER = ",";

    /**
     * 通用下载请求
     * 
     * @param fileName 文件名称
     * @param delete 是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
    {
        try
        {
            if (!FileUtils.checkAllowDownload(fileName))
            {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete)
            {
                FileUtils.deleteFile(filePath);
            }
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 通用上传请求（单个）
     */
    static String endpoint = "https://oss-cn-beijing.aliyuncs.com";
    static String downUrl = "https://alibiabia.oss-cn-beijing.aliyuncs.com/";

    static String accessKeyId = "LTAI5t9fBwG6HdT1VDdzX9cp";
    static String accessKeySecret = "XWb86dc7YSPzDN2Kcf49n44lwIGzvC";
    // 填写Bucket名称。
    static String bucketName = "alibiabia";

    @PostMapping("/upload")
    public AjaxResult uploadFile(MultipartFile file) throws Exception {

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Date date = new Date();
        String fileName = sdf.format(date) + "/";

        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId,
                accessKeySecret);
        InputStream inputStream = file.getInputStream();
        fileName += UUID.randomUUID().toString();
        fileName += file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
        PutObjectResult re = ossClient.putObject(bucketName, fileName, inputStream);
        // 关闭连接
        ossClient.shutdown();
        AjaxResult ajax = AjaxResult.success();
        ajax.put("url", downUrl + fileName);
        return  ajax;
    }


//    @RequestMapping("/upload")
//    public AjaxResult upload(MultipartFile file) throws IOException {
//// 空文件判定
//        if (file.isEmpty()) {
//            return AjaxResult.error("请选择文件！");
//        }
//
//        AjaxResult ajax = AjaxResult.success();
//
//// 解决文件重名
//        String filename = file.getOriginalFilename();
//        // 文件原名
//        ajax.put("fileName", filename);
//
//        String suffix = filename.substring(filename.lastIndexOf(".")); // 获取扩展名
//        filename = UUID.randomUUID().toString() + suffix;
//
//        // 文件新名字
//        ajax.put("newFilename", filename);
//// 日期文件夹
//        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
//        String dateDir = sdf.format(new Date());
//// 调用OSS的通用的工具类来实现上传
//        String furl = OSSUtil.upload(dateDir+"/"+filename, file.getInputStream());
//// 最终会把上传后的图片的全路径直接放入到数据库表中即可
//        System.out.println("图片完整的网址是：" + furl);
//
//        ajax.put("url", furl);
//        ajax.put("originalFileName", file.getOriginalFilename());
//        return ajax;
//    }

//    @PostMapping("/upload")
//    public AjaxResult uploadFile(MultipartFile file) throws Exception
//    {
//        try
//        {
//            // 上传文件路径
//            String filePath = RuoYiConfig.getUploadPath();
//        System.out.println("==========================="+filePath);
//            // 上传并返回新文件名称
//            String fileName = FileUploadUtils.upload(filePath, file);
//            String url = serverConfig.getUrl() + fileName;
//            AjaxResult ajax = AjaxResult.success();
//            ajax.put("url", url);
//            ajax.put("fileName", fileName);
//            ajax.put("newFileName", FileUtils.getName(fileName));
//            ajax.put("originalFilename", file.getOriginalFilename());
//            return ajax;
//        }
//        catch (Exception e)
//        {
//            return AjaxResult.error(e.getMessage());
//        }
//    }

    /**
     * 通用上传请求（多个）
     */
    @PostMapping("/uploads")
    public AjaxResult uploadFiles(List<MultipartFile> files) throws Exception
    {
        try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            List<String> urls = new ArrayList<String>();
            List<String> fileNames = new ArrayList<String>();
            List<String> newFileNames = new ArrayList<String>();
            List<String> originalFilenames = new ArrayList<String>();
            for (MultipartFile file : files)
            {
                // 上传并返回新文件名称
                String fileName = FileUploadUtils.upload(filePath, file);
                String url = serverConfig.getUrl() + fileName;
                urls.add(url);
                fileNames.add(fileName);
                newFileNames.add(FileUtils.getName(fileName));
                originalFilenames.add(file.getOriginalFilename());
            }
            AjaxResult ajax = AjaxResult.success();
            ajax.put("urls", StringUtils.join(urls, FILE_DELIMETER));
            ajax.put("fileNames", StringUtils.join(fileNames, FILE_DELIMETER));
            ajax.put("newFileNames", StringUtils.join(newFileNames, FILE_DELIMETER));
            ajax.put("originalFilenames", StringUtils.join(originalFilenames, FILE_DELIMETER));
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception
    {
        try
        {
            if (!FileUtils.checkAllowDownload(resource))
            {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 本地资源路径
            String localPath = RuoYiConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }
}
